21518809

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 24272640

約数和(自身を除く): 2753831

約数列:

[1, 13, 41, 47, 533, 611, 859, 1927, 11167, 25051, 35219, 40373, 457847, 524849, 1655293, 21518809]

約数ペア:

[(1, 21518809), (13, 1655293), (41, 524849), (47, 457847), (533, 40373), (611, 35219), (859, 25051), (1927, 11167)]